{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x1410026d58365825d7f7496bf1b79008af015bb4fd43d50f7da825d18df74341",
    "signature": "0xecb37ffd23785b3d270746beb23ac32b50f0797b0c1d803f096e60e37b66b52b4db5abba37779015c47be5aca3a2dcd05712766af5c963054d05e072b95c80681c",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}