{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19051",
    "entityType": "User",
    "nonce": "0x8256c7671e420b5ff861e268300e34e1e897c9766ed90dfd19aff85eb9d5ce1a",
    "signature": "0x94c667a372bd0618dcea3a1bedc4370ead9135033948ddd7fa023b62b589e467632d3465f26bc050a6b1d025e171dc18c411435d0a5194bfc7fd34c20b65219d1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}