{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12565",
    "entityType": "User",
    "nonce": "0x2087bfd07c1507309d62310b4b608ef994e6c144fdb4ac12ddcf4df0e032d19c",
    "signature": "0x00f738d057bfc8446306c9530dcff11b4aacfd9bbb6d22b584659f1662efc9cd170690e64e8cacbdb3d1398417dbe97bb6242a1273537855c232c8d8f98169071c",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}