{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1dadfb1703d9827daf0d5f1b4347e4ddaf97eea99e72f99bb5f8bf93fbcd9d0b",
    "signature": "0x896936b2eb3748038a7796f99eb65c39fea0d1c5411383a9d4dc0a11b30f88256f47f54a1d3255e6ec9f86d4ef82cc2a445e8269034de4b5d03ac93ec3701de71c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}