{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa86fe49d4fdbef88bdd66aaa161bc6218ef23199a2ffb1700b11232e6ade2c94",
    "signature": "0x0539c45987ae8d2dd3796fcf185fbefe16ffa7c332f28a02195112d8c1fe23107e18eaa460a538302418b304a6ac2568400713a128e7b2a33727ed66e08c11881b",
    "signer": "0x4f47455CFc3De025Eb8020455e21493Afbd9E4ab",
    "userId": "75936402"
  }
}