{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74183",
    "entityType": "User",
    "nonce": "0x72295d868e157bcd3a30f6d42ead246744a060d2403f4af81430945c99c2f458",
    "signature": "0x2e78d13f08ae71b5a5436da691e528bc19f427ff6f66249a1d0c3e814df96a823c6ba924db884d512221ccf3068bdac968548579a09fb974dfa9932d784e345b1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}