{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x1835cd93f7aa21159657d2b30687b72b72bc8a842c6f8b503fe5198403fafc67",
    "signature": "0xdde58437377a6cd5ca0a7ceaec21d22b2198bd501ad59997f1d42242ca64f1263ea199d0488c5ee4320d3122dde7e1f26134ca3f62250c4414da7659a7a414ea1c",
    "signer": "0xA7259EB855a783771055Af9c4EBE8985D28bD4Fb",
    "userId": "568068817"
  }
}