{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "652886325",
    "entityType": "User",
    "nonce": "0x3bde531e39eb7585200ede9a203363d6b769545f95873f4acef3db23cabcc257",
    "signature": "0xdd911a5cbbc0f754db4337a3658b2f3f5f5688e2ba50415c5e6b8c609872a5d84607134b7e1a19d14824bf7e1c994d760f6af6ad354f9411f73d1bc88a8539691b",
    "signer": "0x3E45B1bA0243f60107205fC8F9971c58d64Efb57",
    "userId": "415050011"
  }
}