{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74051",
    "entityType": "User",
    "nonce": "0x5408fbe526f06bd98d05dd5659590774724e6489e6345a60677004ba3ca94578",
    "signature": "0xb5e5d469b6c2f8feea7ca2cfd68ec870c9adead533f66c0820262a310f527e5a0e59fcc55f8f9c121be35357c71e6e1ad03f8ec1ab69ae46e635b5cba82c39fc1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}