{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1dcd7f953585d4e6d441e222d3adceac482ae5f15616c57d24397dbb934b1862",
    "signature": "0x53ffcb67fab6fa036d7bff05167315b14c238778efabb4587f708d11ecef7d5912c51b51af0ac0b5772f39ae1cc600a70288f0a58b1436d5989fa664c575d1d41c",
    "signer": "0x2129Aa31Becd7c8254c03a5a8cC0D379632482C3",
    "userId": "462042577"
  }
}