{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354403",
    "entityType": "User",
    "nonce": "0x8b2c96fdbb94dd3699b1b51439b3b53971563f98902cab9cf2ac6d108b587667",
    "signature": "0x00300f30170ef8b0b450de9a8cdac7a0abf91050d854579998eb257e8d6aaaee380aac48c13917c831d209523865a8f491a566f158c706470d482adba0e99c2a1c",
    "signer": "0x0246262E4959323EAC2FBf603C6D24352d57Fc51",
    "userId": "700531000"
  }
}