{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281682",
    "entityType": "User",
    "nonce": "0x1c143ecfff97268a6768d1354b352bb423214e994a2b4b4b45369d7c2f3c8069",
    "signature": "0x22df08394e9995d714a955c11b6b2fb083bd2288df1fef7fab4768cd37556aef4c577350a47b4bf4d91d0b65cf13b40848800373384ee7d998b1f566114266fd1b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}