{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51398",
    "entityType": "User",
    "nonce": "0x07b83b19c5682f96d690f5090ddd8ba9e12886b63984b03c236a6181ad5e8dca",
    "signature": "0x9409f48eb8cc5d0fb1ffcd1b3d15951b3cfcc9458f119cda1753d36cf3137d4537d05823fbc472b932c4e0ad09ba906b0c0e199712134118188eefd9b60b1ec41b",
    "signer": "0xeB19B44f7479B2f07c2a9D2CE20E42244add392A",
    "userId": "460208108"
  }
}