{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcaba25828a85a8c8bf5a7cab2860166045cafc5b4678cc7318ca7c14fe82b71f",
    "signature": "0xd2ca12ece928ccbde225a4c78fdd0abac20c9827886ff81818a664a8f4bdb6847b3b6f457ee3421f4d812846aaa38c68f817f574dae3ea542c0325059b61ab181c",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}