{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134623867",
    "entityType": "User",
    "nonce": "0x73f3831371d62d88826784a3dc27f891638336d5a6eab6ba0f623ff8caa89343",
    "signature": "0x46189b6ee3f2e02bb2a0e21665d7ecbbf7532a17c0fca453b11f2ba1befbf694089278b7a1c0fb093cfb95d850181089fb290abf68c4759c27c518fbe0c245e41c",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}