{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1886135",
    "entityType": "User",
    "nonce": "0xf9d791985979e71c179999dd8861ad4828f84005338a9494fd22da2e5e419a0e",
    "signature": "0x51888941be2de017ed7898cf56c0250760255ac5fcb6e71f46fafadc2e5d745d13d5a713154064adbd3f2abdf9e562430ecf356a5a9d842645fa7e1c679c33c51b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}