{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105562689",
    "entityType": "User",
    "nonce": "0x148dfda3bc4b8f37b2fdf4ec1c4f0bccd4096cdefb97ce7a871b656944cf8ffb",
    "signature": "0x9128f234a3222668bea0b8abf8413695a6abc9439f67e51e0519155957ba44480dde4730b592e4199226ae8361252a80749d3e0ecc4c298d554223ca10c0aa8b1b",
    "signer": "0x71ee6650510BFB16b2B0954FE291a058544052AC",
    "userId": "30595601"
  }
}