{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0xde16988c1a30335b4d050ed1e79f5e6b7086910155d8a02172285edec52b4904",
    "signature": "0xb54ac8aa718c7ae9c8b0637876405f2128e35b209b1666769329757da517ed640437d10442327826700fb540bf0b3604ca617689de84cf0a05804fb9f0be37c41c",
    "signer": "0x345F527120644cd5f6AaFF3800A2aF4498dfe219",
    "userId": "519995777"
  }
}