{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66796",
    "entityType": "User",
    "nonce": "0x4a074c4c9bb925c0348316c61afa081d4f74c4213bbfcd792700a1740c6278f5",
    "signature": "0xfd298ab58e5eb340ff0e0d187a38835303c2be21cf3f5c8fc6f56e5b6d91b7c17306b9e1ce47831270a90310d11c1d98f6051e3afc66f89a5853084a504375541b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}