{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1224",
    "entityType": "User",
    "nonce": "0xef1b702babfcc93b06d55be98dca0a23ed069148cb2694d7c10bc810ac088561",
    "signature": "0xf51cdd14a7a03cdf2af1c2e36fb49c9cd2de28f158962a2b7752cc026d8a163c15730fdf351051aec029f34ee5d5012a2e90e6689e19158ec5486610aa6e49501c",
    "signer": "0x48ECe992edB7C739B36f37DDbE8Fe352996B5A56",
    "userId": "183063753"
  }
}