{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "405466",
    "entityType": "User",
    "nonce": "0x45a2fea7960764cc06baabc7a7836356b205dd597198722a5010ffec816ee855",
    "signature": "0x1d99bc102e005dcad700d4cfeb4476e9ff5803aecba253e5c70198df6ff9b616614b0352caeb1daf51fffd2f5ffe23e09e59e8bc9478ff55cebf96a963bfd9171b",
    "signer": "0x9731c27a228046e65489b08a1C3f1A64f7093B55",
    "userId": "848409996"
  }
}