{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "487285804",
    "entityType": "User",
    "nonce": "0x419872eeaa78542c368ee6238179107b4a7c2bd4c81a3ed587e583692b6c2553",
    "signature": "0x6768eda1e533cc3aee42043a05cee964ca25725d071ca06729db7f73557b58b3217d4f6244b76a8fac2bad6bd03fac85c897486558ad271d2ba67729070b97161b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}