{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307863068",
    "entityType": "User",
    "nonce": "0x2090af8b72d8cf0908c355ab3a7f1a1f7af1f0b71db236c8191d02c6d24d2c90",
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    "signer": "0xD8DBc17870A41e0F7ad65EecA55209e033451672",
    "userId": "800360768"
  }
}