{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "224828",
    "entityType": "User",
    "nonce": "0x74da2b53f4f77017f4f0d9aa39677bdec5133d49c52654fc2d5926143b44c7ea",
    "signature": "0x13bb8c09168430bbb2fbfaa7a77ae9e235e0128e1afb06a956c808c0d2185caa2ce977a7bf8dd739db7ce7e0e32c7b8acc0a7a9c355ed6856634b822824990981b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}