{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120087188",
    "entityType": "User",
    "nonce": "0x7bdb4487dc9901c97991df8f8c1002a8d574f973a98e8a7432069268326c8de3",
    "signature": "0x476d13ba1950155a226d7e2a663b0ef31db9156b37332138936c3fb1031feb3b078262d15d4fc26f9fcb4d26a5d1cda9a9c58e9134554389e0514686d3f132341c",
    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}