{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "725844205",
    "entityType": "User",
    "nonce": "0xef97ab7deb85a82234aff3440de1138ca7f141c23b1942de83867ab4510d964a",
    "signature": "0x03df7ccdcdfab031862578a1a14df4868c7852d7b0e936bbf083e489bc4efc05732c5d886f03be5572938f055083eb446d45e0720c99a5426ed56127fb6e78771c",
    "signer": "0xc925e3D5c81807Eb402BaF80F986fc737F7EfB5c",
    "userId": "230578654"
  }
}