{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42425",
    "entityType": "User",
    "nonce": "0xdd3f70f7450e16f2f7deea2945b7c46fc4f8b465d8ade0ce4fddd102da0290b3",
    "signature": "0x7d03532e033549a5472247dbaeed75783c10fec5d059ec8b48fa0b33fa2d65cb7f775c1931aea694b73222b84f2c9b92c9da7154e8bc1348f53a55a0455e7fe51c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}