{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "618025803",
    "entityType": "User",
    "nonce": "0x5ea1e93ebfcc7327c9db61c03d19c64ccdfe7347b22e734efc1e4c17e90df469",
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    "signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
    "userId": "386745392"
  }
}