{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0xe2f44a1529849f1bb1b8194bac6a6399c872625616c982d3c578f5ca210bb169",
    "signature": "0x7d02a3818b30e0997a72cca8f289fe9a3de8d276cb95a10985f2d6b33d53d1c659feb695e0e9038685f3c64acb102bdfd0f4ab371ff6b0a17fa5be357002fa871b",
    "signer": "0x07D88B6447585F78880146Aa4534A574447C9D3c",
    "userId": "193758733"
  }
}