{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "60555",
    "entityType": "User",
    "nonce": "0xc33b56894d2ed6cb302cf778fd1513e3c4f3032e394a8e4cff1ccfa210332553",
    "signature": "0x51c00264494c91388585de58f52e6ecee319e7dc9e1266f0f902584cbf667c5537f37d2320e033efd732446018dec237beeaf32de3fdf1be2d9dc090199ec5591b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}