{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148429399",
    "entityType": "User",
    "nonce": "0x6aa340648f99c9c4b7ffa5facd57e268ecbaba1a39e5f55efb5f298acaa22a3b",
    "signature": "0x088c7279bf2a49a4e016084c3310c098351dcca4b404b0ce9ed127d2f2ca499b588d19ba46f2400d0d8f0082736bee78000fd56520db84f21ed34a5de89b266e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}