{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "375501",
    "entityType": "User",
    "nonce": "0x7c18572aae907f514dd21c004bbd308f17f30f89ac3a34ee34e47282455b28c9",
    "signature": "0xf96018ab144e8e347b81d14e9e3ebcb9ddea7c065d3501362f33348ce8356c2648f1e15c2f21d594d077a68d7e6b29978a6257ab2ebefd34644035457ed49fa51c",
    "signer": "0x65b2681094e762CAD2349e6C1e2FbC8d54b9c046",
    "userId": "11153747"
  }
}