{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "419046316",
    "entityType": "User",
    "nonce": "0x763f3285b5592076def7f488a3d117f790baa08072bfd7673ec7dc3cea7be1d1",
    "signature": "0xb64a8a9d660fe6e5b9a383bd5d2283abbe5cd92abcd46742bd30abe0d45a4c6a0b0b7f44f8d375928782b8f2f802bd78d39628b91e84a22122161bad60e6525f1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}