{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4e0282cb427695a9a399fd5ccf7279debaaa236b544e9a54f3dfe6f7e7185efc",
    "signature": "0xd11c9dab2892fc2036a82cca04899e3abd30d32fad751907fc3c7b24f2a0664a78eccd5965c54013c75fdd31a2079116d669219cf5c77c14e60acd240f0be22d1b",
    "signer": "0x1BF18676e3272039E0bF8f2a021954D13cC10a6F",
    "userId": "839909525"
  }
}