{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "515077211",
    "entityType": "User",
    "nonce": "0x1b3f0afeca2a935c888e65c8bbf50bea31ab4c2a11b92af87985969268f6dfb0",
    "signature": "0x970c9a1e50f801dbb1a1ac27a76677ecc0fbe726e755a1b1588c7515b182f49c10b1069d66261cf50fd5238e12fa421728ee834fcd5251464ea8dfc0e051aff51b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}