{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xccb798a59c430bb103f5081d7887d473019b16fd8ed92ee5608a2c87d7743888",
    "signature": "0x98ed6da23b4d1bcb2cef9a2a7e82186c5f14301875f2a6f15ad170fefc42c78e6d6693fa47159f2ae5d33e824657453fac9b551d921ae15d68b80f57da4b3b2e1b",
    "signer": "0x57564cd9addcbA964DB61E2869871202F1DAeBF5",
    "userId": "262032562"
  }
}