{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "517504222",
    "entityType": "User",
    "nonce": "0xb1032e1a1cbfafa76ff0e156bca035fbc527484f413f2275699f5ea61d2af8a5",
    "signature": "0x1d23cf636d39b3ed9a107ce1484b99611849aa238bd9add52d8eb960cc4fa6d34b52e614f5b2eccf2492b2845ec35aac264fa933285b18667f7e166ff314f22c1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}