{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51601",
    "entityType": "User",
    "nonce": "0x99957277f283dc741287e8c7fe2c952e40e557cd14339f6e59ac441a28a1a15b",
    "signature": "0x5d9ca07865985117295d0a87091f191b18d9fa19db5101ba3451d2fdb6dd89284ea8f0e4dceacb98f6e7847cae395751e844553cb969aad59823ffecfba9b2371b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}