{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124106",
    "entityType": "User",
    "nonce": "0xf54ec84322b97af58a22b3930d587e9f3680d926972a1d6fa0c6c2b78e9b8dbc",
    "signature": "0x1f8f30ccb31b3b44e4706a551e66b790daca2bf4d26468535e1c10de2472629b0e34b1c86f13be12a1400b53286c71249442ea2729abc5dd9a67da822e58773e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}