{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37057",
    "entityType": "User",
    "nonce": "0x7bd0c4cb571544c52ddbfaa1ae18c616c3ed50ffeae0b6632ca49bda36ecf7a5",
    "signature": "0xabecc366cac6537aae7ff2296295d78cc7afbe9fcec3311d3a1f52a6aa46326961132dee44f2bdb2e2d97f139cbf4ac8ee8ac9105e2e460ad687f48d93f835511c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}