{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313829444",
    "entityType": "User",
    "nonce": "0x0007808c4d20cbd25f5387cdbcebd0aa95e23bf1f61acc5793a24c26c544baeb",
    "signature": "0x0b8c46eb8bd5a16f3a7fb2fb908511a6e44517f6a7d23ad0e8303abaefcc180369ee28f3407d0c33d2495d268dce57e915a857d3f619cb99ff4c7da78a14795b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}