{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "570289230",
    "entityType": "User",
    "nonce": "0xe2c74a5ebc40f2f02a225fd168ed76cae51459f1255af9783cd4ee57455be224",
    "signature": "0x1a6cf96ec443c643400194978aecf9460fa43d018994adc4496d303c7804ff8b1a9f6b7bab16d9bb89a0cef7f06830d27869b244a26942674089d23477e672c61c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}