{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273387437",
    "entityType": "User",
    "nonce": "0x0dea0ab2a2175df95cbf2d2ff77ea7a743b854ba8c9477f00e27f97e61a2763a",
    "signature": "0x614205bd0bbd00ef6908afc42b5be009e2f19d140264b2c1a0364ac36fa105f0552f2c55512632f751aab93f071d1f0e24e66d9a53921d771a51cc24fac909681b",
    "signer": "0xE466248f391B5f99247E259e38d4f898225001e0",
    "userId": "260762194"
  }
}