{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13576",
    "entityType": "User",
    "nonce": "0xabf74d8a7a69b8bcc3f571154530cd7a5b51d23a774886d7c5b9c0edb3360df6",
    "signature": "0xbc4d45b95ebdcf82271d5b79feb87bd7109bdbc07f14738cf85f05693ba1de2d04f91c63131e5f59632f26932209418cfe390e25efcf09ac2260b05d8ee92f371b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}