{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "345811967",
    "entityType": "User",
    "nonce": "0x9cad33526b9b8cce7a2fa34fa8e792ebc398904848d74b8a0face8c856ed6f75",
    "signature": "0xd5f938c914e705a9199e72ac18ff04086f286c22f50e1227b8a84f519f0fa9a270d125d1cdb485f6186e43a66e0e7ab3821e20e4bce108f5397ec616953cfac51c",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}