{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x22ee50d27209ba16085324b10e98aa961c36683d47f7c95badeced2d083c7611",
    "signature": "0x029c083cd24ad68eafb335616dd92569a79d996bb8e2afa8a28e51e4284ac6f951e649015d1e8794fcbeeb0ee8519d3f68752274dbf33825919170ef84ac8e031c",
    "signer": "0x52E0361aD6F17b443a903f96dd5AA2Ca65020AE4",
    "userId": "86640190"
  }
}