{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x73d20dca7893de9302f9dafd98d3bf5db839bab705a38c125a6fcbbdce5f44bb",
    "signature": "0x51aefcd74aeab43b8d3815b8141c4c8e5db787b3aedce525e17c8e60dda2c45c7da86b4ec6030c7242111d7b1ee31b92fa823c259632a3d0c06658db24dee1371c",
    "signer": "0xd0d23fA63D766D7766f499571670347EFbB20759",
    "userId": "295326110"
  }
}