{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "898964451",
    "entityType": "User",
    "nonce": "0xe316040b0ff9a1855ea6bb6b25f93db6712baa32cf5d2da65169da79bc19cc94",
    "signature": "0x8b96fd1e1754fac20543b3398e347bcedfdb437f8c53e7428770ee36b531eeeb024480a39bd58f93b8c2bbb27f5efbc0e84e240ca3b414250dfdb0368d7a65241c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}