{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103316",
    "entityType": "User",
    "nonce": "0x4bc49ae1f1020767398706667a5d258b9da3ea26c814843eda8242f769c58259",
    "signature": "0x9f4f4ee9b961b27dc5cd1c917c0e648ea49b2a52f484ec2acb3350f266eba67874543ea709089cd0826fb48cb00004d52a412e62a7ea75e70ad522ceab98f7161c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}