{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343301",
    "entityType": "User",
    "nonce": "0x6c6e2dbb743f57afdd5b12a1a69a3832dd23e4c4f60f66ce16e63a00b959ab70",
    "signature": "0xb373c96f2be3b32ddc003bd9a9c14e172feb43678de06b5e49f22f68b4c98a3c10b92569e3689158d18082fdacc664315e87956369105212d90adfb2ad1ace941c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}