{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x4fd32620f2beda4f0f12878e6c1e5bfa461bd47591caacdf0b907f266e498f64",
    "signature": "0x58762b8d6be05594c57a9b5689a00605824a045b4858088a81dd01dcb0b5e88658e8f131bd8774c5fe34a47ffc299bd5c6c2d878ee35b31dfadb03fd66e7d9261c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}