{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370770",
    "entityType": "User",
    "nonce": "0x69d646e5c27189e3bddc15904dbf625e768c79c9a5cac05f07288bb861a0287e",
    "signature": "0x3b81a0d72d2eca6b7e7f3682d74e4171b685e3cae7bd868ec9a45a96642bfdf923c8e66df072a14658cf252a05973a1b160fe499017c0b807d3b6828f66ed3401c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}