{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "849312402",
    "entityType": "User",
    "nonce": "0x05eb03cae37005ae198903ad094bda4a5b050fc41f325f2386911b8e4c34756f",
    "signature": "0x516e7a7244e1580d3278945dc236ba9117d1d53c7fc92108cb00f14001bd4aa2399e7ae5dc6de92c9caa7ffa1cbedec17127ac191e124d9b2c3a58cd8c47f44d1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}