{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2238",
    "entityType": "User",
    "nonce": "0x336e3d1ff8aa6b9ed2724b58ce6e5bbe4672d57feeae0a5cc2a345983c3884a6",
    "signature": "0x64e81fa115b8973ae851b255d77b5b150e0685713671172e79b1a32e784a6fcb4a33c4d1066b3cad0e9e7fbc288456dda5f45519bad48c0b021dcd7c698a4b261c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}