{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6ded3c241a20817f2d6783d72b8c1a3e70f30e50b7744641b6f14f97d5b1d70f",
    "signature": "0xdaf1f38ccb15dad84189a7f0fe4524396f9011f730849901fa53666d8d8063dd4da6922c538e75c7a0fc8e1a7634817e408d07b6e4c68e3c6e13d7b3cf8bd8341b",
    "signer": "0xa386938C03829fA71b9CA3D6925fA79fc3F715aC",
    "userId": "218176223"
  }
}