{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2ff69dd8fce24b1f6a19abd039926d0b9c63f718a36558d42fc30ad1280ec174",
    "signature": "0xf27c5d7089195a3c1bf9ebcf5a0d698137a83997c2075f4323395c607af5fa9e5bdddf6e930ddb57890b24551b312b8f0d9840d31398b49b8d92f511163b54fa1c",
    "signer": "0x0e3BAB3126A1305F56466D2DB84b61cAA9Eb5433",
    "userId": "458457390"
  }
}