{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "223331",
    "entityType": "User",
    "nonce": "0xe474114def3b7f4054a662e786e414cc38075ac345c5b705ed233042f9028be4",
    "signature": "0x8dd2947777ebd269fe883a10b803a4eba7bd0730894c00e0cedb23f3748f93d474161bafdd327510ebac20c4ba698fb979747a1f05f4e1d5719150c33bf014411b",
    "signer": "0xdA0eFB0e7b973C487c12501759aDb23012CB5248",
    "userId": "178070"
  }
}