{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341422",
    "entityType": "User",
    "nonce": "0xca12bae029057483334833ec4c1e0426fe15987defcac298d14ffdc85058cb25",
    "signature": "0x80ebacec0fb5e57ff66e9a34e227842597421749d147e37d33c3313e136b828075cd54235e35afdc0229e61c1c19d27446420d0d20cb124a3968ff8b64ded9df1c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}