{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0x8ca975bbe70aeab9cfaee28a0086644ec65ac58d92202fc0efabb79fc678c3e5",
    "signature": "0x6ca5babbe5de2220699c6b4abf6c28e6d026e7603d09b53e2f808e0bea6f7761133b68d2b407a9136f6acba33e5485d3c2abd334e79ba61e35fd4894be56d01e1b",
    "signer": "0x1e9F846fdf1a89ba11e2D67fb4831B7E14ae8940",
    "userId": "617992566"
  }
}