{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x29d0249684534d484abedb19a5012c8c8aa45a4a00d1de05fa00923b3d739335",
    "signature": "0xbf75647cb5d1a6a2ad92886feec9b3a5e48e16ff8cf73b92f5057c3dc1a9e17c21c5d7f992d180dcce7de49f84352c14aad2740e845d5a854acaf30ac9e2b47f1b",
    "signer": "0x560CF638EEa19774538D453cC9eC0745a7C66556",
    "userId": "242603075"
  }
}