{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357273",
    "entityType": "User",
    "nonce": "0x138f5c0cd8809ab73be76a3984906ecb5e7c6a3760b0d7f3d1a8005b506ec701",
    "signature": "0xaa5beddda8d8a126710328704eff98a2da984d6684ed69e2242bbdd741d9ade416132eded19ccf70fe280ac1cac4020f6a0e6a749efc11f85726ed642d7a87c81c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}