{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72473714",
    "entityType": "User",
    "nonce": "0x6718e1dda6a3b68f2f464e3530ce237e0de755d93ace5347b2739dea3142656e",
    "signature": "0xbd5f63df5081a66bbe92c1db76f9fc9a19ee74ebbc7f9b9abf233e51c5b393136e51dc7745a50b7cda027095c1fa4748e5919d97cf6df52d87d9229d73e055411b",
    "signer": "0x7604Fc1Df216CC6E330cCbC9802aFa3E13F8EBE9",
    "userId": "830022953"
  }
}