{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0xab4302617b03c6e7a16466b789376ed76d577249669d2f2d5572ad4aa78b358e",
    "signature": "0x18c85a5f47c10e9fd473958c86475e89d3cb760791cbb5a36ce2fc9d3d72a4454ef0f719dec3b17cd65f436cc0977d753fd4c59e604334a0c5ccd013c7baae531c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}