{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451783635",
    "entityType": "User",
    "nonce": "0x6127c4b138d9e95a654580890006173b0cfb6c7aa89490797245d21c6fc87a5e",
    "signature": "0x175bd83596e3592f246955eb795cab4127567e1866ab297cdfd5a184b0b1f830695f40460e234472ce5e6e72b493fababd61563489940ec194e5b91efc0905591c",
    "signer": "0xDDCce44d487ED1f7297d836241df35AAB6D867b0",
    "userId": "22610281"
  }
}