{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1833",
    "entityType": "User",
    "nonce": "0x70a02648f364f839aa5f748c6ad46e46a2ffd069d11b2d3435a535f18f916c11",
    "signature": "0x11b7a7e3f5e550fd0c5cba219dd0b57a63970d9a7b44a45592589677a2e8c32f4e37fcd140a5fc34e1d91a771f19cd95a32a3496c99f2b740d57b8eb5612c1a21c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}