{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7504",
    "entityType": "User",
    "nonce": "0xae1cc61f0f9454074a897d87be310b58677bf617aae183164bcfc671b7cb9b0d",
    "signature": "0x79a2e8d1b833a37bfbc40328a421d9d4ec76538c2f672ff0e656848ddc61bcaa0e1870886605bb12251211f47de7ad50d5e5285f1f2efe3b0e6ac009c2073c4d1b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}