{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd087039c36f5c73b7d877b11d5a11b72c3d27349956edfb2428afdd95d38909c",
    "signature": "0xb784fa34412c141111b63c43c644fd40eb66826e100e54793d7d3da3539f88272bd7c6ed1966fb8487deb06d94e3029061cb8fb137858d8bfd02db2a2937d3981c",
    "signer": "0x1ffe66694EBA97bd04bC1A91f9efe42f781f9614",
    "userId": "788347924"
  }
}