{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1487200",
    "entityType": "User",
    "nonce": "0xffb47c69cf027b0081fe267115ea3e75e4ed510d7ac0faca81b6b047d2baa4f1",
    "signature": "0xa5ddd63d12621ab41e36e3121af62d04b4527670af26e05f26dcedf8d4c597e0065c67f67c44906c8a13fb302e31684583617980780e55701b4829160132824c1b",
    "signer": "0x26b46547473Ba0Dc38d97A65153B8FAfB1A6cd81",
    "userId": "431544580"
  }
}