{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xf55fe5ed08e218cb5a0b6c8d9a7c84af29b96076ed2cb4cab470ea24b12f9e25",
    "signature": "0x9f30551ffcdf316a931436d4413cdc0252cd0153d33146085f521bf35caada9b3c4f3d356784886b364b7b4e70af7952251fe96445fc5640e45cb3934863e2341b",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}