{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0xf7546c9cd2b0507c036983b4153a9b18885ffbeed0d93fec26083629a8f784cb",
    "signature": "0xfd23d289753fc18420a79405defb76fa35f8bb77820e6ca3a34003f8891e6de44f9dde5ed02818fbbf75b96f08555e3b67257f7373be121a844cb465636abaa81b",
    "signer": "0xfc7b754CBb5e42d94a7064c0FD31cF7c5c99afE5",
    "userId": "992932046"
  }
}