{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "485987672",
    "entityType": "User",
    "nonce": "0x063fbb7724016d00b0bcf09aecc95c97ded2e65d4ea098f39a043cda12e9b559",
    "signature": "0x4e135fefc1eb98592d580b1e92f547504d273e649b77644e666c8f31b64a59b81751be885a161ed80d0b51fc6781b48c26fb3bb769a7bb67cdbdae60ab5f84511b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}