{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xba93514100e211f22892f6b7dc8139e062ab813384bb7112995324de64ddfda4",
    "signature": "0x98e1f4000844c9d2cdf4e5b12b8f771da7820c9b47459a8910742ea7f9d2bb4e308e3c13763007ec855c4945a5e80d01bb36c7d084153934829241abe3ff31371c",
    "signer": "0x02e544bf39dE2c9D6a681f40FCB033569EBe84bD",
    "userId": "412824318"
  }
}