{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2012740",
    "entityType": "User",
    "nonce": "0x11753e76cdb975a31b3d7474eb396d0fd6385df3a7867955d272ca8317f8e0ec",
    "signature": "0x09033d25013d77f9c1f57932aefe4c62dc0587de583a1f1249286838bb0a17fb50482d72a3d434fbe86887478ce22dbd1ec232c102579695328b521449f40ba41b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}