{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcbcb8210049c35ee0ae04e23da345e8fed53cf74415906a9162783f631f84d96",
    "signature": "0x93cb23ab5520181485b165859405315cc42da3347ed8cadff78e917aa7f8fbfc1f72c432325da7de33d28e0eef527b171c7b649aa01b048236becfc5e04b7f091c",
    "signer": "0xD44d14BfB53FEb80E62e094811000875cabF36B9",
    "userId": "564057429"
  }
}