{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0x1c01563e8b9d96e6d93a9e41302e966b094e071b9333d936d7cc06dc4f90054e",
    "signature": "0xe7ea8186d9ec2b2f08e3da064b9925a0bc81294c7b63d09635e58547ac2fa60145ed286bcdcf87b12d9079edfd9164d268513300e96e95b3a1d498beef59ff9f1c",
    "signer": "0xdfcc4d06D5B8A0AF1AF77B1Ec434e5F50B625a75",
    "userId": "620921422"
  }
}