{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0xabc65b43cde76dd9396c528393a800817c41d7659621abcc91b8741476218607",
    "signature": "0xa321252c6e963c959eae15a421b44683133f7b274f9bf0077f6ccec26100bdad26da4827a8fd1ae8d5f570b3fcb50f2d0b3f155952870d7cd8953efa47644acb1c",
    "signer": "0xbAA633dfD19281ECC20a6b689F49CE8725d526Cc",
    "userId": "127651"
  }
}