{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446297292",
    "entityType": "User",
    "nonce": "0xaadba25eedbf7e13ea427acf26727a09900098917e8fca5ec3d023da7c0acd33",
    "signature": "0xf19d3f18be97bcb30bfcbe7fbd7b88954af5d604c93ab28a3777d277e9db1147754063fbe624ae4cbd344d1bd7f44e27c9d53f5efcaeb38bfabc0c944176ebe41c",
    "signer": "0x222534475146193b99B68F2E3830ED2b44307C2D",
    "userId": "991417453"
  }
}