{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142655",
    "entityType": "User",
    "nonce": "0x0b3af60b7a6286d3331a0c6046947beef8b26f96dfa2d222fddb2de58e6ade20",
    "signature": "0xa7726d4e0575f4a501a2254b888b8b3e57861783d11933b783ae6f67bd787a893d370df6b7bd701ff39a0b684bb7ae4b3878be23047ac78ab8f198519ddc992a1c",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}