{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1497323",
    "entityType": "User",
    "nonce": "0x1ab740e2dfb3793dc8b8b33a4d169e86e6b9f8c981d73a8843b7c12ccae0415d",
    "signature": "0x0f9fd4b5faf7976ee28e15113c1307ae8b098524eff7047449d7881fe4cc9cc96a5f02c47fd55532a763c402150f171e7c6b7d7c99412afaa25ef04b6a0a609e1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}