{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937107046",
    "entityType": "User",
    "nonce": "0x4bc6c9391fe08bc85ce64acf38f00057f2ec8df9ce38efedfb27f4a694d85b87",
    "signature": "0x2449b83b5d1b80f6a3fe094f1e93b3e9efa4558bd9809e6f9ca7107b0ee8dc7220f9fffe09d804e9b0953114922092be0b34213194a242519f56afb7a47d4cbe1c",
    "signer": "0x5501467AFaA7897fBBD65dE583c7E74577B92f74",
    "userId": "608591950"
  }
}