{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "889307575",
    "entityType": "User",
    "nonce": "0x119cc8b3c8bb0666c503a3bdbb7f4d2fd143f892c17e8866b0ab430b7e721194",
    "signature": "0xfb6c2e7ff01c157bfd34c2e8741753749bb94586a1118c9310440ced2e6ca7fd1cadb907dd03ad28e07e61a727554f87929959ab1cea61fa614b65003795dd271b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}