{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171637838",
    "entityType": "User",
    "nonce": "0xf7f64372a3fe4023cfa7573e163970b3b0a1ccce7abd299bab6e83ee3d288577",
    "signature": "0x04892ca6673b65ff2e10e79fc99bdf9b94f40ad53289d0eb5873c66fd55401e71c22fba58edf01ce3ef86f7e3e0cd7fcfa66c248d3624140c27644cb0c83ccde1c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}