{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325172820",
    "entityType": "User",
    "nonce": "0xc65c00ba2a0a85fac29283c31c503b4fb9a308c715fcd5ad9f92915a7e36c701",
    "signature": "0x10ae9e5cb38f715942bad622eff2daed234980a006e3e2eb6994a06b194696804790ae5a81dd0a6bb35e7d814543c1f0ea2e84684c2e17c216def8e460319fd91c",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}