{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "866131253",
    "entityType": "User",
    "nonce": "0xc72f0d30a629536b0f82892ee32a977116cfe0b387a57e4bc51f54bb08d55495",
    "signature": "0x3e133d8a65e950563690f6e51e8979814fc7aabcf8c4ffb9ebb20e34c73a76c26eaddf2257ade1b3ab5cb8ffde379d379b0cefa418baf0dffdec83e4dc69ffa61c",
    "signer": "0xc5c542a604880bF9049870Ee92c9CA4594Ed3129",
    "userId": "277347377"
  }
}