{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0x5a19900206bb47ec3ffa5f3f00d94fabc8b607ce90b67868ec28a5c509e1fc61",
    "signature": "0x0d940818e38441039519ff333cb05d8a656797270cbdca5e7390ad32983658b44ec5ede003d3965e1b9b25ac147467534d0605d5d461003fb941248e3118ddf91c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}