{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305838",
    "entityType": "User",
    "nonce": "0xfb5315b8cb5e42a256bc3d47e146109f73857949bba6f0524a42b38649a70e70",
    "signature": "0xdd010798b02b71950d02472b59a853eb2683b3dfd2be10e926770e10fa13316c0f8755a25d1f87c9343b1d1bad81ac2be2e32cb9a0de163f5a1a44f1e5c6bec31c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}