{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "562530159",
    "entityType": "User",
    "nonce": "0xbf70783cd1378071b8c29df295b0b5c86bfb15ec6b24b78ace6c85b37a582cea",
    "signature": "0x4275c5799229babf53bdd93ecb1b93bc54fe0dfa394ae3350645f696d06f0fd2505d8413830b27d645f108cc78967e8469ef87b1789df7e0fe489c112ca3ba3d1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}