{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30263",
    "entityType": "User",
    "nonce": "0x83a4566b29d5a02f69ad7cc966d9ab3bac93c02fccbe2e63bb11660bac76cf2f",
    "signature": "0x94cba40304027b8f0f9767480ce67274a1ff038326587df64283718782e0e5d21f2f9470781a83881e6a888771d26cfb2297e3e5e67ccd5ec76a33b2c0df576e1c",
    "signer": "0x200bde37e1742bbDD4Fc1D298018EFaD7448754e",
    "userId": "372725089"
  }
}