{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354947534",
    "entityType": "User",
    "nonce": "0xf7ce65ad01c66a86ca6aa3269e0af6e7da393a301e10e8a4acfab6dab47bb008",
    "signature": "0x371dd4adf66ea7996ebe3878cba2b5c4a6054a91bd8982a673883777abf611f94abed3a92b8d83d6d812e88ef575afc45697b35976bd8299a8170f6a26e3672f1b",
    "signer": "0xf955397B294667924e7Bb7F0242060CE42339111",
    "userId": "142071420"
  }
}