{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "117827",
    "entityType": "User",
    "nonce": "0xcddd606294fc40c64357a0fcaccfed31c9fe5704096d82ca719540a3a1c9234a",
    "signature": "0x98117b6bd86d8ff19c66813e975e2721cc400dbd5a46c76e0a603333a89c4388506b9f6a24151236acedf3fe81ff32324f04f3c8b87a398f6969bd7717736a5c1c",
    "signer": "0x05879c5e12AD06542dCf5d3192dDDeaa2faa3754",
    "userId": "445555"
  }
}