{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2021159",
    "entityType": "User",
    "nonce": "0x8a81ba65f65062e61ea13a73702abbfbe526172258238a8901059a6de1de64a7",
    "signature": "0xb9c8b4e1ab8aaf1922bf6efb5853122ee83ff0d7f7cf2ff4527c5339a0b8bf907fa9f871788b378cbe03391db35878a2d6d67a3ff2e518383e23bddb539e6b741b",
    "signer": "0x6370bBD2Af458B7e9105B70aA4C95049deA95a6E",
    "userId": "753303354"
  }
}