{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "970214396",
    "entityType": "User",
    "nonce": "0x9afb4b894d02397adce185971f19e329f1e96cf81c88345b21d42d2f2eda48a0",
    "signature": "0xc2bf3ad531cf9836bae2e85490df2e603faeb4fb68f388d5288e256f4aeec50c7b4d36e76d3d4d76aeac6385e3ce204b7ed7dcdfd471b336b88d7b21a1c139411c",
    "signer": "0xE0EaB915C3153F4a2DF5C6e7b8D58dAc829Fbf2f",
    "userId": "774741623"
  }
}