{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "241215583",
    "entityType": "User",
    "nonce": "0x719a1b78a6afe6f53dc6bb69c1278130fe93d40c287e65f47872b8053846b83b",
    "signature": "0x5a4c553608b4ff71a48f342c84ec583e7eacd9a48dae64b50bd1ef21f2c50a746228ae09ad1b4844f1257cdcd84009e83628b11eed8b299ded913c28f860b3c51b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}