{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332488",
    "entityType": "User",
    "nonce": "0x0051fef79d5762dfaae4053f7d50c2a46f15c88fbd596291997e156ac0b19c8e",
    "signature": "0xe2f9568bf94d6239e1fb8293b4bbf59d3a4fb7e7dd6d8bc3366f6963cc7f671629b839961428340f542effc600bc1895ba1096c7a43b38e3b05cdabe8ae230831c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}