{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294741",
    "entityType": "User",
    "nonce": "0x07659923cd501e8db0dca2aa325086c68705d14bfd89d40846104a313cc9cab5",
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    "signer": "0x3e16afFf69eC32202c1B755Ad919C7aA325B7aBE",
    "userId": "902811065"
  }
}