{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54432",
    "entityType": "User",
    "nonce": "0x5ab04f764bae2b20a00e836b0b5850a2b2e1bf55134acb898b28af4aba02b19d",
    "signature": "0xa65449cece1b3d5e43efa706c05aaae8a08f1849664740224229d3f7f0a4ab44199a7b034a96b96e2bb93efe6c95daa6118821ac391c12827a24518f8a159a5f1c",
    "signer": "0x5c2e2A73436Afc1110f5020da81CA7f791682E96",
    "userId": "871579076"
  }
}