{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xda3e19d0a6342614a3f4a620b9499cf2b90cedcaf2eb3fe4df742da4f56ec916",
    "signature": "0x15bea0edd4d1ac16db638642549c0331968342747bda4005e7ee734f1cb302b54e5b6a4e1e7432926a81f42512e45404bbde7757741e528418e7e9cfb7c8b7ef1b",
    "signer": "0xF2AB057a0d89b7CA5daF37a942E56daF60588947",
    "userId": "370496076"
  }
}