{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64115",
    "entityType": "User",
    "nonce": "0x631f211b7aed966a0e1ef959a5628c920ebaa08d0de004b602aefd314def0ce9",
    "signature": "0xb8efe9e7f95ff8d84098039fe0a7b66bc27cd60c1f22b1853197b38fcde9e72749f8eb2ce2df253ed2d8657eaf58fc261933a9638fc31585210553242dd5c7641c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}