{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139146722",
    "entityType": "User",
    "nonce": "0xcebc9024112763dafdb4545ea14c0bc4f17a8fe18a8ed61503e2392027541f63",
    "signature": "0x499d1b11196309c61d8203cea3575bf30b0593f06a6b9c3b8ed867e8a72415490cdafff8a1debb47da42cbff40ef0f3b528bc88b077f86c6c2f89cbc2ef6db7a1c",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}