{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1346",
    "entityType": "User",
    "nonce": "0x4e56ac8c46927527225efa3e929a6f59ebd68fa68019f0406cb454d31ea5bdb9",
    "signature": "0xa4298441f18b70bcca2784d921b01a23f936567b9d64991e7db6b4a32d0d48da7360cb9b5d5f03e85178099235af13ca626fa08cbe6c83cbbd2dd00719e554ca1c",
    "signer": "0x91B3395fE9ef3DbED960814b746D5090A733122e",
    "userId": "978171292"
  }
}