{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "415165487",
    "entityType": "User",
    "nonce": "0x2f9751267d415e2ea69b0ec5799b9becb322aa2a2d01fa14cc7240e7ecec2c7d",
    "signature": "0x699f64ff7c8c6c26fe1cd89faa09f5b209b06c74e9045f57cfb356c1ce684b8068000cb01c5cb2399f309c9cd07872177fc231f96735d75675eb656a69089d9f1b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}