{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "712556959",
    "entityType": "User",
    "nonce": "0x182d6145fb8f3df1c9320ed3918b5433487669e9b2f3484ce32475c5aa19e6a5",
    "signature": "0x755e7f332118180312566538a8a734a70909c4e48720eb5ff1246ff1e9424dae7f795ab73e7c3e755de7a2fa06555ee93c5b11af062372911d6e70fd79b100b11b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}