{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0xf3f1d70cf61a751f6ddbc354d8bf75d58c9b947b98882e3b75aae3ed0272902f",
    "signature": "0xa64870e947a9bf32605279601f7a96c6e1c9df5360b0a933391933c8269b5ab472173302c248f3bae57c74ad1ea07def7af5b988fd64932f39b33b99a73f5b111b",
    "signer": "0x9a5ed0b3F555Cb77D9B73d00AF43BaA4F88b1487",
    "userId": "736503935"
  }
}