{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120328",
    "entityType": "User",
    "nonce": "0xec27f04f345087abd58bfaceb3709cfce5b461fc7432fedf6f921afcf7b53338",
    "signature": "0xce624d8998f466c856a57a8c92482307fd73faa156e0a3ead982f9c698a6957222a0b0904588f17bd809588633b3c8843e5df7c773c572567c2c69420dbbf0bd1c",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}