{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "702567",
    "entityType": "User",
    "nonce": "0xa9ca3afd2dc9958f5ce9dbbeba91448d9a841fbc5f2f98a729abc63254c95277",
    "signature": "0x1725768710e9dcddd86d8aeeea9d9ea0e52245410c5ba61130072db4241f82f900dfc651541a2cc4b6f918d2eb4eb56f4c7ca5935179b3c8ab4417fca621cff01c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}