{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xd9373ad849deef5b002072798f752bbda10fc4c6567c378021252e89ce282e96",
    "signature": "0xf724c3cec54f2bd624fd302d92fcf26f4b4b9c40f68a4afd434db218cb531daf4374a5b15087e6df38314fc4ba10a666258e2fcca2dd04e65e519bb46b53cb531b",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}