{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa3741f5f891e2c5399c1a9d1617f96f283b67afbad6419fbb3181709af47560a",
    "signature": "0x3a503472225317362606a1225621c5ee5a9e2ce4a14f5611a64b98b65dd29746181ae32dfeb6586cb124e79f20c732b3dc23fe38428e9b0e27dc535f5d5c85d71c",
    "signer": "0xc2d9E3a4ce93a3bA3F13b18C0b26ae1D9325BD22",
    "userId": "259260651"
  }
}