{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbba8d989ad0f954e5083ff97f453960859a0cf02d30e202a351f689b3e071b4e",
    "signature": "0x5c483214586f84c74ffb9985a1d956a6e1ce1baebac0aa2a2467a2be1ba0bb773a74864e073d2f9767d106dbb1be7bf2c40cb90dd2b614616c359eb1a0a3b8101b",
    "signer": "0xeaAD55Bb8d3e66AB4a3118b0A4C3b0d0A50f3559",
    "userId": "810725498"
  }
}