{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "656",
    "entityType": "User",
    "nonce": "0x905f980eda30795404429110231d4ef217ac3b9daeee36fa3ba31400071ffb02",
    "signature": "0xc07206e907e90c851cc922d3f43783ab32bc4b5ea3dd8a069c4cce40f9d46c091edd5bce2e9b819415c3aa74f45e9914a2db2d8890b6fd1a04faf6dde99329291c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}