{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x24efb542dc430479179e35ee8730c980bfe2bc737f9ac21ec4bc4c890e94d546",
    "signature": "0x2853259f9453e34fb22f10d6328b22222984e56408b6626ffa9b3a314660fe6265dce7f8494ef46deca436ea558e2b3501affb388180c7426f2d0fd5ead0f8bb1c",
    "signer": "0xC5eB8967CF9Dd295F2887c7Bfac1B475C66C06f4",
    "userId": "769201191"
  }
}