{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1f223cd3534f91dc3896bd5522d67a1ab076a2c7a880f9b4192707576f98e169",
    "signature": "0xa6be0146e7b3b968d8af2857139a6a382fabf756ec2303d4c413fa46535d5fb407b977b7e72f4eae8b6cafa8ff721912afdb8df1a8b845d799c949b5a7338e501b",
    "signer": "0x62858Eef13b4A2ef7cAD9Eb37D1a547102a55A2B",
    "userId": "238991585"
  }
}