{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571117272",
    "entityType": "User",
    "nonce": "0xcc1bac62e5562b503fc9684e5b22bf538152c220cd0eca07ee381f06246b0c56",
    "signature": "0x1d6630c23ec23e2341df6eb54247fcc4d2bec5ccd9f3634cff307c1c8872c080481d58380490bb3a77516f0ae8b53280579ed63da6b21d154f73f0349cef30ce1c",
    "signer": "0xFe4E972E3ec8D8d619816F5644f74CB5bA1B01b1",
    "userId": "219239808"
  }
}