{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2440",
    "entityType": "User",
    "nonce": "0xb0de0ebe040aafed2873ac8d05a55f9089084ba3c3b86a5506aee824e1ee7584",
    "signature": "0x4eb3829d8443137aebd6f7fd4eefbb19cf943fdb89721d9dacb58f8bc83e05543bb239bba483c8e958ce3ccbd80df51a9c5f49265a6e2ed1a8b968049823440e1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}