{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341801",
    "entityType": "User",
    "nonce": "0x9ad7285a6f9c4ce28e905e677d0d502ea3be05579a05bc8c3589b9bbd96651f4",
    "signature": "0xae124621b202f3015f4122f2775bb94ce294bcbaf8d45d811a01592b0da5a7d002e2c141febe3f4fb4f7b331455785562c41b926e26da647045d5c9fecdefdf91b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}