{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "58943",
    "entityType": "User",
    "nonce": "0xd2c1515687456ec470432dd5437c306ae2cc342b87af4d1d482bc6feb8c974d8",
    "signature": "0x5d3a3e3ee0ac3a70ad79bb2fc7544bb1ac535872279527363faebe50da00832011cf1d87939480fb9c75af9e93a89da15e2ecbf9b0c01b60546f39538eef214a1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}