{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3dcb32db464e7cbcdff44533353b8bb2cbf2c5f50b24c0ca5cd15b98cd6fda59",
    "signature": "0xd6f0af31033a600999d3138893df83cd73bfce7d593f882873b14c0a6edc01e12511025f849c63ad141734ba7c9b1c79326597c8a16bb42b8eb5a6704623aea31b",
    "signer": "0x616e106A26709Ff2F6FA26369E19F9398C8AAf97",
    "userId": "95340101"
  }
}