{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0380529c0ab2fffb02043418b79f68c87a7e8527921f95674e5ddae732c0cad1",
    "signature": "0xbff75e476a89f7267a2a487648112d28e8d9d41ea41cc21de5b99643a4e6bd3225734ab0a23fc8c1eb3906e953f48e0dfe0f88e7bd4008331511f472557e61a11b",
    "signer": "0x96631AE8EE332f8b0A00D0Ff2BCFBEb0092b5dfb",
    "userId": "256491722"
  }
}