{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x34192f5a7975360aca2e04f65899a0536494e0d019d79f01689e91d2f3dbcc44",
    "signature": "0xb88c0ea551d111b6bc94667fb52678e8828f38257de9c3e06ee793e2e6bcb93d21ddc54f1c70f454cc9f46977d81569ef4d52dc818eff26dd70553be4c4c62491b",
    "signer": "0x3872417aC9CCdc743F396f6d7A6872e91dB934d1",
    "userId": "701379462"
  }
}