{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64159186",
    "entityType": "User",
    "nonce": "0x7afbea84e08d62e9c437040bdca197699d50c894cbc56a73d95461727c81ec24",
    "signature": "0x5ec231c198ed6a31bf04b70603babe8c8f7b773d024c1ad566fa94554ec91ebc5aa445f393831f63e5a0c9909a1ea84e770df602e9dfe48394e1b3ed5598affe1b",
    "signer": "0x3CE307cb27B2Fc2b03Eae311050CA4e8C34Fa57d",
    "userId": "50936"
  }
}