{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10449019",
    "entityType": "User",
    "nonce": "0x27acee705f6427edd559febd3ada2c27ada35f78a8851ff7fa2774390429ac4b",
    "signature": "0xe28ae4fb12ec3c8aa91dd70d6ccfaafe50e2e0f9d50eadf2ebfcc6fb1779f1645a73721ea0d37b39605c03b4e7f61e82b337a0cf7f35f8d906400ea4f62a8ed31c",
    "signer": "0x2B55314d733BC60522711F9B9914f271d97aDD6B",
    "userId": "224685891"
  }
}