{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0xeb660530c24dd126d3850edca03a4ef9dbbd9d54664222338060789cd53f5acf",
    "signature": "0x1b1bec76ad591e0b55354a1c91d8f72a20444fb9ecdcfb40af8fbc0c2d94d32a08817b8d6649f34cb00bddec7c90c2d4b6b0d6596bb06e4f46bfb15e119d199e1c",
    "signer": "0xC75a276D0a36850045510B0483E737bCDd1F5E9b",
    "userId": "588125677"
  }
}