{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632918751",
    "entityType": "User",
    "nonce": "0x5ad033ea9f6190a523c9772929aa22dea8bc9047297ee3b54fc791eef395e8f9",
    "signature": "0x216d4e4b7704210a5b8768e91fcbc18db72fe0e475e5fcb1803f8ffa06f4a1062304486a8aca84adad4fa7c3c3d83de7e864abf31eacc74625e3d07edd307d9a1c",
    "signer": "0xeFC9B78A20535768B9d5BCd2702b853bd5C0789c",
    "userId": "333246"
  }
}