{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584186978",
    "entityType": "User",
    "nonce": "0x00ae4c3dce5107799d49a3ba457b14c55bba961e95543aa9310a5e076b57c541",
    "signature": "0xef98f89ed09281d9e0d941e09828522464ad5c914b8bf7d101a7ba7a9dcdef3c78d6a48e2910bb9fd627bb76feb5ce7227e370dc73a64623312b638824c525891b",
    "signer": "0x12705C8Fe8CE886CeFEFa0d4d46E906f2c35C954",
    "userId": "477934274"
  }
}