{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15191",
    "entityType": "User",
    "nonce": "0x42d0b19904fdcfab0fcf42d94ce187b00810b60cddd767b598295d68f5cc41b9",
    "signature": "0x2a3120fe0b49a8e8dce8d4c2f936ab526ea5a2ca8734bff6a1d72cc721ab00f85983b94b153b91b427d261812e4de3899d69d6a7a79d74fa6c8d9daf90e56c0e1b",
    "signer": "0xf5E671DCF684528CeB5832E52D75Ef7ad62b1160",
    "userId": "688631167"
  }
}