{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "425258",
    "entityType": "User",
    "nonce": "0x01eabfcb982d664c3a19d303a1bb0306fed81efb1cd86853866761cbbcdc26de",
    "signature": "0x8f4753fd61fca331e896ced514c84fb15e24fb70dcf9560212fee1952265ec2b5f881410a1ade2f7488534400a3d2a7b213480ad130d831b0c906c062b1186501c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}