{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50962",
    "entityType": "User",
    "nonce": "0xb0d6ab4c0ccb6f764084597138b5087d752cdecdc7245f18e2205d7022d7eb58",
    "signature": "0xe8e97890ad6cbcfb6232c553211162ce44e2abfa5d330a3649c4e408a943efeb566b091c6851d4f362dc178b53dbb414dc4809cc2dd1ed10589cfde886da4e571c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}