{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125833",
    "entityType": "User",
    "nonce": "0xd691cb933ab85dc4cc450526ab78c42493cb964196362e8f0b20e14b4e44ccdd",
    "signature": "0xdbdd1b9e1880b9c242ba0c2edb3442fe3403c308b127da182b384bab2e8adcad0ef74609e0037cf0d68394823841b1c3cbb46ba3c77758354c411539f4f566ea1b",
    "signer": "0xe2b1dcE37383Da05C6DEcaeCeB1e76b1449f1711",
    "userId": "218728810"
  }
}