{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258388",
    "entityType": "User",
    "nonce": "0x61b042fa62d85a2a515ba19134ad1b2570ebeee3097d792b3a56edf9fa9016ce",
    "signature": "0x9e54361d124bdd7b124cfbe811f7305cd84299a1e740d1eaac433092e9ac5eba48ede7966c62d6438b23d4db6c944df2a2523f62cac38420f6ca563a0039b2d51b",
    "signer": "0x1c4e2947b5F9FA4A927a23897193150631C1DA35",
    "userId": "933435942"
  }
}