{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1881176",
    "entityType": "User",
    "nonce": "0xaef355f07b6274679a71f079d8fe6942d935a2af986c93b34b5caa7659bf3de4",
    "signature": "0x72220f869cdad6333e4f28d37a522994b1aab3b0adc9798d3689e1e33428ba0e78be4e2daee4595f159ee3f21b31b0cbae1201c6b9133b8736a313f0374a00ec1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}