{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x695b71057d99191754c90d718a75d993706493a0c87f08d94fd47e3bca5f58aa",
    "signature": "0x29b4eb8cfdcab4bedd24083c9e568631078745d3e51863a23e59251cef659dcf303945f19237944bde2635e3d1766b93baa1a1d81913ec1e7a2114c6e45cbb131b",
    "signer": "0x600ab5340CbcEdF27914F7784164758a7e1eaBF0",
    "userId": "307479286"
  }
}