{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0xbec10b64d6a05ec7cbc7ac788e2f225156bfa7da521fbd995b250d5992a14e2d",
    "signature": "0x549782d373f19f764481de124cfc6290f714983b4912602329fefb8b5919b8325951f90796ad250efae42e671ea5c13a1d0ed5e2b551c9b2e90f5b4263c669171b",
    "signer": "0xd367754F1CE503c2D28B6793582BC23fD71eE997",
    "userId": "420647095"
  }
}