{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334736",
    "entityType": "User",
    "nonce": "0xf225fd3250d419d7b65c32dcbfaf452f581dd226ea0a5247c1b0ecf9020ec767",
    "signature": "0x0d3a4facd8e9995165aff1eb26da1575bde358ab5fcff85c6e0425f9dc25152664dc316d595ae64f5ca57f4303d707b57cc9e667106fecec97b621390e1e30f91c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}