{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "966718637",
    "entityType": "User",
    "nonce": "0xcd4c90d0f410d526b0b834c4d7fe61e5e00fd47a9b7c3e5288f365b104b95760",
    "signature": "0xb95d5eaab40679b8e2ff57cd4fbd8e3ac9d12a8d9970e324690593d0f3e0764121afd42e38620ae7e4d05aa56b91eba2fe96fb2444c398a0630fa97179991c8d1c",
    "signer": "0x4affB179527ee604CBCCb000A6fB3E5563330F2e",
    "userId": "265097712"
  }
}