{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281482",
    "entityType": "User",
    "nonce": "0xb749077f2eaef45411e6bfaaa322225989288fd139bf5d98e044e16d0e8220e5",
    "signature": "0x43b9558610bec99b51675526f308700910d2f7fed01b043bdd112fcf9dc18d581a7a4ea02b532ad2e2b321a1630727878871e2a136b0b183dcffa1af3582b8611c",
    "signer": "0x8739aB96B52ccc56d0E5226Ff69659162d4269A9",
    "userId": "320952162"
  }
}