{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3760954c88465c78f891e1906244bae3031dab8341f68896694301ecbf72c437",
    "signature": "0x1e8c37a6723bf405f5f406332c7a6a346923e7966bea9e8690c1384467a4c52c591c200157b334253c2efa87f88026385565689bf57593f43f8dee4250a02fbc1c",
    "signer": "0x686Bc6B6feE40A52Be47899175f284eECD2aaB62",
    "userId": "416057557"
  }
}