{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81057056",
    "entityType": "User",
    "nonce": "0xc3ecb3171721e40b7205495e0ccd58df1ad419d720ee484d4d7702fad9a98319",
    "signature": "0x5ed40af83bd71cf9ad8e3a669cbb44a2a31ede38d30ebda608e035783f1a63272ac9ce9f5e12db215366dfe50b9f452ef834cc0f529d67d6042a981e1b3dc09f1c",
    "signer": "0xF5C198A035503518a579b15Fb9eE834F3b4b1bAB",
    "userId": "765691673"
  }
}