{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "824478223",
    "entityType": "User",
    "nonce": "0x543ffb0d8620255d807e33e882b1c703d0428b25e7b497e44c4e2834ba333536",
    "signature": "0x34f7899e2712966fb104005e54381a742c9d11f3e78ca2e68bf7324b76d7222413f8d4207621b1a29cf8831651f1761fd6ca17253779209793812f0f68c4eb671b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}