{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "912588066",
    "entityType": "User",
    "nonce": "0x35d438a4a0124ec7987f539df583ca34c1abd4bc5eb7f9b5e46623a8cc125027",
    "signature": "0x931411c94b18b3430232d68fdad57929c24ea0f92bca29e28ea18d331b572b6d3e70561d8d144429998857a8cd6e6369b6250a03205a18700c1389dc0344b2511c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}