{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "457973935",
    "entityType": "User",
    "nonce": "0xaee405f10cd854a3b1666168aadffa6da384c57568b240f9c2224ffedffb073a",
    "signature": "0xac5f8b39f900bde7cf2e8b0e9f5cb11f06d7d8f7437dc1fa4086da9caa6ebd92496ee3350d838de1e2434e8e5b53c972f35d56199e49d4f3341f8b3654956bfe1b",
    "signer": "0x0897045A9f1a39F1e6ACccBaBa4a0509E8f15ECa",
    "userId": "172041745"
  }
}