{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "298955",
    "entityType": "User",
    "nonce": "0xc9d7d852aa7a15047dabb92b0b20e8738eba67464cf73e06c7c538a0d6eed165",
    "signature": "0xef76a30b8bff0519e1ab4d6efcc14d155d491f31b5c87052cd20c2e097298f584a1beec0da78370c5f49f08607cd913b653f4ac20844073e895dc2f1f30046151b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}