{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "804508659",
    "entityType": "User",
    "nonce": "0x023cadd9215a7fe328156bce42899962b91dc1f1c3a0a543adbc1c6ce37446af",
    "signature": "0x2c5a3fb52337b3f1327d3935faee5e2bd6174d25d7c483baaa205ea897c64703496618da74bca6daab727715a5e6b2df5ceac4d0ac773b4af42b2bd5d266f1561c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}