{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271347",
    "entityType": "User",
    "nonce": "0xac119805c34527468f7481ea269d9e0dc24ab497a4af277b700c5398e726b011",
    "signature": "0x7649c1d916eee55e131b877e8c0a0ef0902cdee8b3c5b8e92abef7e7f640e9275d578343330dc2ec024998d1fed7733bc2cf4f1881014f68b0ad25de8cbdf6a81c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}