{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3394",
    "entityType": "User",
    "nonce": "0xe275282dac13bb481363236b2734b5f9425a45655b6e63234ffb80ae53943927",
    "signature": "0x0df1fd2f9f1d8c146e4ea83b4f9b9a9f086a29bd1dfe5d6e4790d2be9a294ddc21554eb37e2a6d9b38f00938775d215e5a6db42ddf486316d36e71d51d7445501c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}