{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73150",
    "entityType": "User",
    "nonce": "0x1596b52379a5bd91ab6c56384969459631234f0f5e8bd9fed6f9b8298d6df0f4",
    "signature": "0x891dcdba64b5aceb1f57809fe60ac78f20b182809f0c274da8579aa0845e89b0515576673922e43243be7afa55ccfda7a67f6a8572088a0b92ee1e5504fa440e1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}