{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "113344",
    "entityType": "User",
    "nonce": "0xe7d94c57636e4479622c75bbcfa7c19397d573685bc04fc7f0a52bd690f46754",
    "signature": "0x9108439ba662e5d6657a04f5855d972b52cce9597d054ee6ba5cf9e4c69a7f4927ca49a9003c312ade11a3dd7b8b6103235b0036d04d573b611e87a525da14461c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}