{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "781872",
    "entityType": "User",
    "nonce": "0xb9838993990fc4a3481d743678fb20f876820649c0314d1740cb16b748c63c52",
    "signature": "0x441ea2bbf7a5da131eb960e3a3a51862de01156a04a3d7464a8a3cd9a11a41d14ca2fba62c2021575330d9c7dbe02b9ef388bf3a39ce017342009f069a4fce341b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}