{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "670928447",
    "entityType": "User",
    "nonce": "0x723124c2cf48567cba983a086ceef900c4a5a0aa058671f48b58ce8d1aa4e1ff",
    "signature": "0x923a3b3679b58ba34767aa426faf42603225fc5ff5639bc70f9635257557ffa908b2ee6db709b61e5d030209f9a29223d1ad3b83b9bd68440ba3d5c23d7e6a7d1c",
    "signer": "0x809Db232a6131f46553BA571FB17bFA2cc58aeE9",
    "userId": "351386054"
  }
}