{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6f0752691e15822ea37a8bbf0adb16e05a2f1c0b0f91381be30c9782f3701cf3",
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    "signer": "0xD31D1F97127C695F294b5b4Bb141F237C33d3D7E",
    "userId": "208320997"
  }
}