{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882430",
    "entityType": "User",
    "nonce": "0xb68d086ab2205971c631013c6bc0f31d8ec143dde9d9b08d753741c1a945d808",
    "signature": "0x6b9ffc4f5514b40f88549350a604f0d9e35e21de560738c09ef1a10ab21d94100ffe0b4f083dca25f97db0757cb4abf5c8bc9902bab5d79de0aa6c857e951a131c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}