{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40161",
    "entityType": "User",
    "nonce": "0x6514e081f92394903f9cb82e1df3a6c147705bba41cf41912ba62dd71c81cb86",
    "signature": "0x8f211c2a142449ec819ca240d4d2d7294a3d51cf89a8159a25782b8be05b94410e45793268f09ca96436ef4c6bbe4c742caa8bce7299f9346c1e863f030f8b381c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}