{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd6054c2753130f56139ef175eedf0d73edf3906dcec3cf7360cfa9dbef144506",
    "signature": "0x10f94ee7816fb08fa2b29878d37ea152832fe38512f9e7840945889c7a23b5a578a6ba6061765cac4c2fc5fa8ed3f69c4eb12bcceec7d63b22907bb55ff267a51c",
    "signer": "0xdBdc477B63C29EFC86BC37eAc5c331EA0C6E0d59",
    "userId": "903413427"
  }
}