{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x18ffe738491f6e1235b925e76fc1448fb4aa4abc37283e414269b245e1175402",
    "signature": "0x7e36dfe1e3f312cd36f894f192897802702f4540db044c1fb6fadd77570db6697af6597cddaad04948cb30e6e48af81efebfe58c1192b881891b0c846ea2d3561b",
    "signer": "0x8410ae550e371F50E654eE78f3b43Fd696c1a25c",
    "userId": "649036093"
  }
}