{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7928a0e386899101e6312d579dc3d95dfffbf0ed3a8b762adda7d3a4308e54b1",
    "signature": "0xc75dea1a382e93347c039acad18acb3b3fc6e3515295109b7d50d4ab1d1039f6549f813c897975dc4bd178103a0f7e8eda6d83db182805784453ed2c41788e5a1c",
    "signer": "0xfC17Fc8798beaE2f98ee6Bd874e12e6A904a23C5",
    "userId": "384940783"
  }
}