{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28264",
    "entityType": "User",
    "nonce": "0x75ca7fe77a115ceb2a8c8961bd23e719d5a92c8fac4b291af3fd893a99399732",
    "signature": "0x55d61e7bc1248b0c5e706ded2e04bbbdd50e1571916a5dae4c12a78ef8b275cb729d3b98606c98e4a9706396d76036913c4f5fc521e4f81f75de39a25fa589971b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}