{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0xc20b0a15c0b9c6946a089f67e4d90b09cc38a4f0c15bc1ce5941d8d90e12f931",
    "signature": "0xb2fc870836c654ba5964a23cdeda5a4590d22512e2351a556a09998205d8a90364acb9ad56acac4638867603702891ce7d6b317d16c605778fc74d7d471017a11c",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}