{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "990052786",
    "entityType": "User",
    "nonce": "0x67ced5ddaba60a34431d141dbcd0458e3a5fc4459c8dc7f154126e2271948d0d",
    "signature": "0xbb1f31b1cd2cc39f04c76aaaeeb00336d550c7ebb04169a86def49149c80e3914ca4b033825ffc0f966e0e037cafecabc58c43b069bec8863f65373a5f3536d01b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}