{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887242445",
    "entityType": "User",
    "nonce": "0x33885c356099da7743eed2a6d322d4aa08a9e987bf0dba7f3a53a212faa22661",
    "signature": "0x35941abf4ad61ecaabab593ccc06ecb058a781f3b0e3e415af2ab02ffc51a69128f3d2134093bacebecce1de197372797d26ece61e7a418e17b6ff1cd9f2fa031c",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}