{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2154",
    "entityType": "User",
    "nonce": "0x0039a241da22923e2501f4b8b1a15fefb5cc0948e338ac95e470c1db84946f0b",
    "signature": "0x04e79120adfe72e7f07723cc9472c74978ea83b971560d88d26fd0f339e5e0d207e4ac16103c75d13048d6d80b7c8a2024a9bdc3472219ae03c0e63e3b097be41c",
    "signer": "0xF2c19977A72e7f63bBbD9063748E52c002b22f6b",
    "userId": "957488166"
  }
}