{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3838",
    "entityType": "User",
    "nonce": "0x069bc26f7a442e405f0347bdf248f3585b73efd62f8bb22d7852067d19e55d12",
    "signature": "0x8c4befde99c644cc85dc69cffbef053f64b75830f60ef12dd18a956126d3617e735c4df4dfa692a49865bdd2a375be3f9e06f05a8a7d78d179ab1ef425939ef51b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}