{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa192992d34074fb0de74f78fc9bc2e1b088e7595ede0e635b83283069ed43c2c",
    "signature": "0xc92682a24b8e949220c598864ab4758b73e6746389b6474b170287bd015f3a2b2add91d900ccc8365784a537686812fd1d9b05976d18f198e19df95505fe208f1b",
    "signer": "0xaF41619C1352C0cb12Ccae4C012e02B7b4Cb4726",
    "userId": "726039615"
  }
}