{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5052110d041a498f90d590f2348fa972e0225100f9db3cc11fddc07968851cb6",
    "signature": "0x57770b65f1d04888763dddfefffebf4b74917f4146883f6386f88568196933df6947195e6af2539d4736e2e1b206d0522ac82baf1d52af7a7ab0f3a3e75199b51c",
    "signer": "0x1179A4497Af7088aE1D573A35578CB60168D8E74",
    "userId": "917572832"
  }
}