{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1491",
    "entityType": "User",
    "nonce": "0xa4951ffbc287e3ffc44a132fe487bc12b7b5e95b6b1a17259fa8accb25dbcca7",
    "signature": "0xf36ada0c468445efc0ff1bc52171a74882ad48a41fe192ce2886170036c74b973406abad4576ba976369c2d86a157a07008642a342df425660f2a8660ba9a0c81c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}