{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "670307808",
    "entityType": "User",
    "nonce": "0x119c7ffcf884f95cb99088e47e98c0c13836f25510dffdf89914d374753177ea",
    "signature": "0x3b59625488bea15d72e2b38c951aef384d9df4b23503b32550f49364d41efa673ca84a52ed18b7dd961acd1260f1e33429fcc7536f5e1bc79f60aed37fb560221c",
    "signer": "0xa1F606584fdE30bB7d4BE2EbeC98A5F95E4559f4",
    "userId": "786922215"
  }
}