{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x34b5255818a7611b71f5d6271788468e7b9027e09f5e9a228deb9d04e27f56e1",
    "signature": "0x2a82f5bc186a000a6e4ea184a88c36f80a2ad5c02300aeaee446d43fa19f9e0573f63331bb772d62ad8a0d28dcf471badf0b2e68e12dd562644754f9975ad3721b",
    "signer": "0xf7146aa7c75f0FE0D0e8cB1d8143c3D7E63dEaB1",
    "userId": "106262932"
  }
}