{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707937",
    "entityType": "User",
    "nonce": "0x7e9e24a0f5f50fc9a5dfc0eb9d3451e4c875ce35ba93e51b40d0c7716a5f10d8",
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    "signer": "0xD7b77507B36309E22CbDcE677fa21ec620EbBa26",
    "userId": "846451325"
  }
}