{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67976",
    "entityType": "User",
    "nonce": "0x0bf7b44cc2930a33d40e8507f030293a0804c3b17a1db3bf3bf4b9b662e169b9",
    "signature": "0xbc20c4d1c9989ad020fec5e3eb1f78e34f9a053929bfb495a0e804dd97e5c8a778fc87f7c7b0e24fa5546f3fc013eeccaaa9156da057e5eb6714121c7c1517041b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}