{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9e1f7384ef4df19f1689dbec09a5e8aba13f747193f570cf44ffdb694a11ba5c",
    "signature": "0x2918ff33673657beff8c6aff396cfe6b1f1203a02f07ad5ce7d0c027c2e437be3229523e08954db9fd35fe41540cdf4d2f30414d153b7ae8210e7f7049c46e351c",
    "signer": "0xd3b26Fcbba30Da55a9B9990F6afDF65050f85375",
    "userId": "892025237"
  }
}