{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "568643352",
    "entityType": "User",
    "nonce": "0x41d8a1ec54fad81d728e7223816c0bee851ba0c2f6c1d030865fc34b02781bf5",
    "signature": "0x2a12cd5def3f0451de3daaabce96322e54957f26f9bff6d6501c47b066bfffe53244fed0536626ff56fb78ac554dfa52ff08f5441beaf4e73b1d086cfdbe56191c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}