{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd0707887a9bfa3963101f43e3973d7e27abbc1e82a6bee2f06f7f128be8910f5",
    "signature": "0x6d62328cc4813b5f9f972be821f3da0567a2df9e818b4148527fed31278aa7b47ae0834bb6bc98ff38e1d9a0b7a65ba7e74f05d6d1f257f81858b42addd05f5a1c",
    "signer": "0x9f6407dF7D0ABb10c5542e6a490e184bFaB2e065",
    "userId": "315508809"
  }
}