{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x04c43534f2c9ccfc7433b52edee44e4518cd65cc73361fb5ac9fddccea168e55",
    "signature": "0x6cbddae70d6ece1cb2c38bb48cb0946160f88745ec0b12fee99717650cbb5f8070ddf6f5f26c1d9a63c2960cb9d09830e266d74760bf5409d78cbb35b9a1078f1c",
    "signer": "0x906B16aF7f03ea3812DDbC744AD8c982e66a8E95",
    "userId": "358738258"
  }
}