{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "485987672",
    "entityType": "User",
    "nonce": "0x80cdc88cc158220ef504470d4a6f5f09cb9d209359acc84022d8954585e5c86a",
    "signature": "0xbc3c790b43d61a96603f62252c5698973cb1634ed719b13de5d1bf99d42319d16639654fed3fd221890433f430d39ae1f92abc822b1b4e8564fa89152644d13d1b",
    "signer": "0x09Ed944A6653804DF5E864d5240c837F643E2c0F",
    "userId": "214509563"
  }
}