{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x51524b8b9a31f4deaa8177d7035b0323be49e47c15cdd032065327f633d23b5c",
    "signature": "0xf005e75512c25e1a29044ffafceee1394b1eef3138120bcaef25789ce2c88d1c363dd14b94d2563ec514e84f1bf3c8921016598b14a3fea63653866d7ef4f3321c",
    "signer": "0x46818a04152E9755371104a2959F8f8803261949",
    "userId": "672308250"
  }
}