{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311257477",
    "entityType": "User",
    "nonce": "0x37f06378029d48d6cd586bf755fa2a2bab9d08b856e3d4ce95b6f4cffdbdf22a",
    "signature": "0xdf90186b0dc7fce912cc1ee20c76a73254f5d8ac21778614e510f6821d6e90e75641352372d5d3a6b30265fabe42c8f9725cb6a9b611854d605c36c1d169567b1c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}