{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231260",
    "entityType": "User",
    "nonce": "0x2b4ee2d58ac62585ed95ab6498c8cedea0b278125da368ba8a42c143f376ca28",
    "signature": "0xb0a8bd3f31744c208e50d904b9d67009804e0e25f2a777138845108d92f885d27fddd722f521be0bcd3736582ec268344fbb9682d34f800763825907d700864a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}