{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "945818227",
    "entityType": "User",
    "nonce": "0x60291149f499adab038168b2af1ba872cebd3c2995794a799c273ff8f8e5a2f4",
    "signature": "0xcf7e19f03597370a5050a94b22d90f790366811e98c14b9101a2af92d8260da34ebe91b74b61ec1ee252cb0ce446a6a927c478bcd489a0de0aaf7e3a685d04c61b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}