{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xf847990588223fa7e36a92dd7da316d7f3d484f85566f46e9688f2d37b663d40",
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    "signer": "0xd6078B0551D517b9e62F8575E0209CaC9a0F733C",
    "userId": "326305486"
  }
}