{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19048",
    "entityType": "User",
    "nonce": "0x2ddc828a2e46533a42f91e2aafb9d31da2fd3e7da3514785256a38e93ed1822d",
    "signature": "0xb2aa7af32469a1fec21973695b4bd907f1e20ad381ce2a24ce29b7fb232e3bf5418b1676e903d425428ded80534165583d73a59b1b92ecc084bfbdcdfeaf6fd91c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}