{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0xed37fbe2279e6fc42ea1a461772245a5c3f78e6c8c5d8ba1aff59d2b01091cbc",
    "signature": "0xcf8a4d2152c458eace7d05cf8682b20f4b5a2100bf6201d2393d3ba61e68597446a9b19547ca9723c1b5f6fa992f38f1f194bd17b55b7b63597fb5e5416ea5221c",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}