{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "127776",
    "entityType": "User",
    "nonce": "0x0eb51a05f4ccb0913890b8f4f82ee739fe61b59b617f4a5abb5dfb2f8f5715e3",
    "signature": "0x9a580004411b8ffc15c858dbe6638764b17ab321530336115952b7d5c4c0e2e5617468b184c535476c8e6b386d3f0362ff97d69d7eca46830942b1c0b5ca88341c",
    "signer": "0x745895918A1926af8a7B4C34Af51BdF98bf5C7C8",
    "userId": "54958731"
  }
}