{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xf7134a338b38960f561419cb2ffac5edec23c9d92e444867eeb898c8d7667f32",
    "signature": "0xaa07d0aaf8eff6da31a82be38a75bbcc1d63c55d1357e89a6be919c12f4f3c0e2383a83b4dbd058a4af2ba0903d11aa6a0af976458d0e55458604ed2ba707e3b1b",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}