{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258474",
    "entityType": "User",
    "nonce": "0x11ae9e82c0f6c23faf0d8a5201c898563cc8924af9a10abe6711cf3deace01a6",
    "signature": "0xc57fa1993d91545a953b3f2bc918631024ac163fb33cc9d4d57f6ff21ce6ac9562ba42ad52dbf347236b8ea188c7f54ebc0ffdf6fc23bc4dc0bfb412b5fb96fe1c",
    "signer": "0x6015AC6ad37b0328C10a529E70348751FE8ffF41",
    "userId": "176201"
  }
}