{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "611452722",
    "entityType": "User",
    "nonce": "0xfa4634e5f51d371772250b5ac8eb6b1974f747234a586799c485561ed1c98319",
    "signature": "0xdcf5c4c7e7eb928d3f859259f0075c3cc3227b555f42fb0eb03c4a8224dd9ffc0b1c207c4a92d9a40aa356c69bdd5e5bb5acc8efce8efee58950e9e4d65eebce1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}