{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916757808",
    "entityType": "User",
    "nonce": "0x6b9fb8d6017689ec464842d8dd64e301678323ea1c02484ac080f60842a80d29",
    "signature": "0xe908f0cdb343382cbc149d8cb59481f0eb76dbaca7912a88d40039b2ead9f64d369f30426a24190501cee1c6d5bbb9dcbab111c725b19240dd1a8ab9358d9edd1c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}