{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xed108fbf9d558314335022d286d5cc37aceeddd127c58d56f30507c36a6ca3ca",
    "signature": "0x4eec0627cf261b61d32c24940fffb4a202b2b4163d56268c268ccb91ceebaaf1662f38b6040c10911c90c645c6f04b9ef7e48e5ccfb8bb29b82f0bc7b31c65e21c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}