{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "508186998",
    "entityType": "User",
    "nonce": "0xd8992dcf782ff03ff805590dc9868e843fb4aa7346921c9bd80c2f2971655029",
    "signature": "0x7d4d2c844f4800eedf41f537e7888e0495e06412eb2fce59e72e65675a71ea342de043cdb376c3eac759dd8fabc371877fce9c888396dc0d793a3a1a33cb2c521c",
    "signer": "0x52Cb4b468190D878a90e6d678064532b2405fBC6",
    "userId": "184931764"
  }
}