{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854954038",
    "entityType": "User",
    "nonce": "0xd89bab26edd81f1417a0f5961e3bda871fb92ac526b7de4391110bea44007096",
    "signature": "0x15e516886a0b33996ca1e50aaa9a6187ed4a0707e12536ef9f33e4ce7a686c315910703f8e3a9d77450f7c3ef3d3396e95c9d9d53e089e5573cd523e59130b8e1c",
    "signer": "0xcd864e8A0A043bf1B2DA4106C35c1daF234468a5",
    "userId": "784246910"
  }
}