{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xe605733c62bfd7db2b82b517ad07ff06c36f6b5522482c4030043cc2c8d3352d",
    "signature": "0x81be21e2a0d98511fa90ca6297b677b56c177ceee135e3f270feccb2585b21a655c94c08ecc93de7965f16e280e1f496fd0774c3753d111ceb3488a72b32ad2f1b",
    "signer": "0xcc9cCc523005B394381478381D34DddB8558A28f",
    "userId": "957873025"
  }
}