{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1605",
    "entityType": "User",
    "nonce": "0xb14ba111bf2e5c113116f347328827e9eac15c04c6c50ffeb00b0ae2a6033a0f",
    "signature": "0x13212e7cf58017966aaebd446658b725a19649048f8d618288325121d0bbe0a3368b673e66bbfc451c7d957740cc0fb434d6a9554e3dd361b5e1c6b827ace5eb1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}