{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "789257107",
    "entityType": "User",
    "nonce": "0x324bcc81a07c08a81e91f5bb332d3f3b4600fed7adecb24e3d350486cd909ed3",
    "signature": "0xb39db48af8a155a92bff7044b78cd5e61a0f9f0b82b6c441eb4bcb60012f6683603dc77373ab61b1cb947e54c0901404afd82b29b30936de8eeaee2d217707071c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}