{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981356686",
    "entityType": "User",
    "nonce": "0x06d0ec749722161e216eb929f6d1f564764446ce5f14adcb626d719cb866d4a2",
    "signature": "0xcea2f76f4173e9f9a71dd654bcfcd4ffad05ddc9578762f21dd69fed1b6581fc7f01bdb668a0e3b30ff5a4beb4a083b2a6f82b9245ead9bea7e11c660911439a1b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}