{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "85419",
    "entityType": "User",
    "nonce": "0x0f723912f3238b40f1de60ca7381b94ede50bbc5e83ce1c7440e8e416cbc52d0",
    "signature": "0x87dccf5d3ad573cb6b1acb70b888e7b7254bb6a50ecd910ca57d025494a2695012bd7ef02b92677705e7570ace4d74cfc78122c6f25716ec590d691f65af67621c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}